C41E:
Antarctic Ice Shelves: Surface and Basal Processes, Instability, and Breakup I
Submit an Abstract to this Session
Session ID#: 34010
Session Description:
In Antarctica, 44% of the coastline is fringed by ice shelves extending 1.5 million km2. Ice shelves buttress flow from grounded ice into the sea, and so are an important control on ice sheet mass balance. As recent shelf loss on the Antarctic Peninsula has resulted in outlet glacier speed-up and sea level rise, understanding the processes leading to ice shelf instability and break-up is of huge societal importance. Changes in atmosphere/ocean circulation and air/water temperature are implicated in recent collapse events through their effects on surface/basal melting respectively. The precise mechanisms involved remain elusive, but it is thought that fracture mechanics may play a role. Here we seek contributions from all geoscientists investigating processes occurring above, on, within and below ice shelves through fieldwork, remote-sensing and modelling. Our aim is to improve knowledge about past and current ice shelf dynamics and stability, and elucidate potential future ice shelf states.
Primary Convener: Amber Leeson, University of Lancaster, Lancaster Environment Centre / Data Science institute, Lancaster, United Kingdom
Conveners: Ian Willis, University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom, Alison F Banwell, UK Centre for Polar Observation and Modelling, Northumbria University, School of Geography and Natural Sciences, Newcastle upon Tyne, United Kingdom and Daniel Goldberg, University of Edinburgh, School of GeoSciences, Edinburgh, EH9, United Kingdom
Chairs: Amber Leeson, University of Lancaster, Lancaster Environment Centre / Data Science institute, Lancaster, United Kingdom and Alison F Banwell, Scott Polar Research Institute, Cambridge, CB2, United Kingdom
OSPA Liaison: Daniel Goldberg, University of Edinburgh, Edinburgh, EH9, United Kingdom
Abstracts Submitted to this Session:
Bryn P Hubbard1, David Ashmore2, Suzanne Louise Bevan3, Adam D Booth4, Paul Holland5, Daniela Jansen6, Peter Kuipers Munneke7, Bernd Kulessa3, Adrian J Luckman3, Heidi Sevestre8 and Martin O'Leary3, (1)Aberystwyth University, Department of Geography and Earth Sciences, Aberystwyth, United Kingdom, (2)Aberystwyth University, Aberystwyth, United Kingdom, (3)Swansea University, Glaciology Group, Swansea, United Kingdom, (4)University of Leeds, Leeds, United Kingdom, (5)British Antarctic Survey, Cambridge, United Kingdom, (6)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany, (7)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (8)University of St Andrews, St Andrews, United Kingdom
Steven A Arcone1, Laura Ray2, James Lever3, Peter Ortquist Koons4 and Lynn M Kaluzienski4, (1)US Army Engineer Research and Development, Signature Physics Branch, Hanover, NH, United States, (2)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, (3)US Army Engineer Research and Developmen, Hanover, NH, United States, (4)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States
Angelika Humbert, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Glaciology, Bremerhaven, Germany, Keith W Nicholls, British Antarctic Survey, Cambridge, United Kingdom, Hugh F J Corr, NERC British Antarctic Survey, Cambridge, United Kingdom, Daniel Steinhage, Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany, Craig Stewart, University of Cambridge, Cambridge, United Kingdom and Ole Zeising, University of Hamburg, Geophysics, Hamburg, Germany
Christine F Dow, University of Waterloo, Applied Mathematics, Waterloo, ON, Canada, Won Sang Lee, Korea Polar Research Institute, Division of Glacier and Earth Sciences, Incheon, South Korea, Jamin Stevens Greenbaum, University of Texas at Austin, University of Texas Institute for Geophysics, Austin, TX, United States, Chad A Greene, University of Texas at Austin, Institute for Geophysics, Austin, United States, Donald D Blankenship, University of Texas, Institute for Geophysics, Austin, United States, Kristin Poinar, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Alex Forrest, University of California Davis, Civil & Environmental Engineering, Davis, United States, Duncan A Young, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States and Christopher J Zappa, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Indrani Das1, Robin Elizabeth Bell2, Kirsty J Tinto2, Nicholas Frearson3, Jonathan Kingslake2, Laurence Padman4, Christine S Siddoway5 and Helen Amanda Fricker6, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Columbia University, Palisades, NY, United States, (4)Earth & Space Research, Corvallis, United States, (5)Colorado College, Geology, Colorado Springs, CO, United States, (6)University of California San Diego, Scripps Institution of Oceanography, San Diego, United States
Sammie Claire Buzzard, University of Reading, Centre for Polar Observation and Modelling, Department of Meteorology, Reading, RG6, United Kingdom, Daniel Lee Feltham, University of Reading, Centre for Polar Observation and Modelling, Department of Meteorology, Reading, United Kingdom and Daniela Flocco, University of Reading, Reading, RG6, United Kingdom
Rajashree Datta1, Marco Tedesco2, Cecile Agosta3, Xavier Fettweis4, Peter Kuipers Munneke5 and Michiel R van den Broeke5, (1)NASA Goddard Space Flight Center, Cryospheric Sciences Laboratory, Code 615, Greenbelt, NY, United States, (2)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States, (3)University of Liège, Geography, Liège, Belgium, (4)University of Liège, Département de Géographie, Liège, Belgium, (5)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands
Alexander Robel, California Institute of Technology, Pasadena, CA, United States, Douglas R MacAyeal, University of Chicago, Department of the Geophysical Sciences, Chicago, United States, Victor C Tsai, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States and David E Shean, University of Washington, Civil and Environmental Engineering, Seattle, United States
